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Thread: How long traditional materials still be used till now?

  1. #1 How long traditional materials still be used till now? 
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    Nano-technology, composite materials, amorphous materials...
    A lot of non-traditional materials, theory of them and their fabrication techniques has been invented since last several decades.
    So how long will the traditional materials like iron and steel still been used?
    Will the traditional materials one day completely be replaced?


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  3. #2  
    Forum Ph.D.
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    No


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  4. #3  
    Time Lord
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    Man-made materials like bronze, (cast) iron, or hide glue, of course go out of use as better alternatives appear. Ready-to-use "free" materials like lumber and stone will always suggest themselves whether we use them or not.
    A pong by any other name is still a pong. -williampinn
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  5. #4  
    Forum Isotope Bunbury's Avatar
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    Some materials have combinations of properties that make them particularly suited to engineering applications. I wonder if any newly invented materials will be able to provide the infinitely variable combinations of tensile strength, temperature capability (low and high), thermal conductivity, corrosion resistance and fabricability that, for instance, stainless steel, carbon steel, various nickel-iron alloys and various copper alloys provide. I believe iron and steel, bronze and nickel alloys, titanium and aluminum will be around for a very long time.
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  6. #5  
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    Quote Originally Posted by Bunbury
    Some materials have combinations of properties that make them particularly suited to engineering applications. I wonder if any newly invented materials will be able to provide the infinitely variable combinations of tensile strength, temperature capability (low and high), thermal conductivity, corrosion resistance and fabricability that, for instance, stainless steel, carbon steel, various nickel-iron alloys and various copper alloys provide. I believe iron and steel, bronze and nickel alloys, titanium and aluminum will be around for a very long time.
    I don't mean they will be never used. Though, for industry using, they may be replaced of.
    For example, the cars were once made of steels but now most of them are made of aluminum alloys or magnesium alloys. When it comes to air planes, even this kind of simple alloys are replaced by composite materials.
    The only problem to non-traditional material is their price. Given new fabrication technology be invented to decrease the price in future, it may be possible one day they replace iron, steels and simply alloys.
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  7. #6  
    Forum Isotope Bunbury's Avatar
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    I agree, traditional and new and yet-to-be-invented materials will coexist. I have a feeling that we will never see carbon fiber containment vessels for nuclear reactors, or plastic skyscrapers, but I could be wrong. Cast iron has been around for 3,000 years and we still use it to make pumps, engine blocks and valves.
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